WO2014023787A2

WO2014023787A2 - Glass-door opener

Info

Publication number: WO2014023787A2
Application number: PCT/EP2013/066590
Authority: WO
Inventors: Gisbert Failer; Andreas Sauter
Original assignee: Assa Abloy Sicherheitstechnik Gmbh
Priority date: 2012-08-10
Filing date: 2013-08-07
Publication date: 2014-02-13
Also published as: DE102013001020A1; ES2669511T3; EP2882916A1; PL2882917T3; DE102013000287A1; TR201807020T4; EP2882916B1; ES2648194T3; PL2882916T3; EP2882917A2; WO2014023786A1; EP2882917B1; WO2014023787A3

Abstract

A description is given of a door opener for a door having a door leaf mounted such that it can be moved in or on a door frame. An electrically operatable actuating device with a self-locking electric motor (12) with a linear output drive (121) and also an actuating mechanism, which can be controlled by the electric motor (12), are provided in order to actuate a bolt (11) from the unlocking position into the locking position. The electric motor (12) is designed such that it can be displaced, along its longitudinal axis, from a rear position into a front position, and it can be fixed in the front position by an electromagnetic device (13, 17, 19). A motor-restoring spring (16) is arranged between the housing of the electric motor (12) and a stop (14a), which is mounted on the door-opener housing.

Description

glass door opener

The invention relates to a door opener for a door with a door leaf movably mounted in or on a door frame. It is a door opener for a door with a movably mounted in or on a door frame door, comprising

a door opener housing,

a latch mounted linearly displaceably along an actuating direction between a locking position and an unlocking position,

- An electrically switchable actuator with an electric motor with linear output and controllable by the electric motor

Actuating mechanism for actuating the bolt from the unlocking position to the locking position,

an electromagnetic device for locking the bolt in the locking position,

- A back device for resetting the bolt of the

Locking position in the unlocked position, wherein the

Actuating mechanism connects the electric motor with the bolt. A door opener of the aforementioned type is known from EP 1 950 364 A1. A latch is between a latch position and a latch

Unlocking position displaced, wherein the extension of the bolt from the door opener housing by means of an electric motor and the retraction of the bolt takes place in the door opener housing by means of a return spring. For locking the bolt in the locking position, an electromagnet is provided, which cooperates with an armature. The electric motor, the armature and the bolt are connected to each other via an actuating mechanism. The

Actuating mechanism includes in the known construction

Multiple hinge with several swivel levers pivotally connected to each other. This actuating mechanism is complex and complicated. In particular, there is the risk of blocking the actuating mechanism, for example due to asymmetrical introduction of force line from the electric motor and the return spring on the actuating mechanism.

From EP 1 473 425 B1 a door opener is known with a bolt, which by means of an electric motor and an actuating mechanism between a

Locking position and an unlocking position is pivotable. So that an unlocking of the bolt is possible even in a powerless emergency situation, the electric motor and the actuating mechanism are in one

slidable cage arranged in a door opener housing of the door opener. In energized normal operation of the cage is held by means of an electromagnet in an operating position. In the currentless emergency operation eliminates the

magnetic force of the electromagnet and the cage is displaced by means of a return spring in an emergency position, so that the bolt in the

Unlocked position is pivoted. Such a door opener is complex and complicated. DE 100 1 1 610 C1 describes a door opener in which the lock latch is first brought into an intermediate position during unlocking by means of an electric motor and an actuating mechanism, in which the door is still locked. The latch slides on an inclined portion of a guide plate, which causes a force splitting when pressing the door perpendicular to the guide direction of the latch, so that a partial force acts in the direction of the latch, which presses the latch into the lock.

The invention has for its object to provide a door opener with a lockable in a locking position latch, the door opener should be straightforward and high reliability

should ensure. In addition, versions for use

Glass doors be possible.

According to the invention, this object is achieved with the subject matter of claim 1. It is proposed a door opener for a door with a movably mounted in or on a door frame door, comprising

a door opener housing,

one along an actuating direction between a

Locking position and a release position preferably linearly displaceably mounted latch,

- An electrically switchable actuator with a

Self-locking electric motor with linear drive and a controllable by the electric motor actuating mechanism for actuating the bolt from the unlocked position to the locking position,

- An electromagnetic device for locking the bolt in the

Locking position - A return device for returning the bolt of the

Locking position in the unlocked position, wherein the

Actuating mechanism connects the electric motor with the bolt, and wherein it is provided:

These components of the door opener are in special association with each other and interact in a special way, as follows:

The electric motor is designed to be displaceable in its longitudinal axis from a rear position to a front position.

The electric motor can be fixed in the forward position by the electromagnetic device.

Between the housing of the electric motor and a door opener housing fixed stop a motor return spring is arranged.

The actuating mechanism comprises a arranged on the linear actuator of the electric motor switching member which cooperates with the bolt so that the bolt passes from an unlocking position to the locking position when the linear actuator extends from the fixed in the forward position of the electric motor.

The switching member cooperates with the latch so that the latch is released from the locking position when the electric motor reaches the rear position when the linear drive is extended.

About the electromagnetic device, the bolt can be locked by the fixing of the electric motor in the locking position and unlocked by switching the electromagnetic device, the bolt from the locking position.

The term "self-locking electric motor" is understood to mean that it is preferably an electric motor with a self-locking output element Linear drive be designed as a non-self-locking electric motor whose output shaft is formed as a threaded spindle, which cooperates with a linearly guided output element with internal thread, wherein the thread pitch is selected so that self-locking occurs.

The proposed door opener thus has the advantage that it is simple in construction and that the three main functions "operating the" bolt "," locking the bolt "and" back parts of the bolt "are clearly separated from each other.

Essential function as a door opener is that by electrical switching of the electromagnetic device, the locking function can be canceled, d. H. the bolt is unlocked from its locking position. Preferably, the circuit of the components can be designed so that the activation takes place in that the energization of the electromagnetic device, d. H. the energization of the relevant electromagnet is turned off.

Another essential aspect is that the bolt which forms the door latch of the door opener, preferably linearly retractable and extendable. The bolt may be formed at its free end in the manner of a fork or as a U-profile, so that it engages around the edge of the door leaf in the closed position of the door in the extended position of the bolt. Preferably, the door leaf as

Glass door wing be formed. In a preferred manner of mounting this door opener is mounted in the upper region of the door, z. B. in the upper horizontal bar of the door frame, so that the bolt in the vertical direction and retractable and in its extended position in the closed position of the door surrounds the door at its upper edge. It may be provided that the electromagnetic device is designed as a removable unit and / or retrofittable unit. In this way, from the proposed closed-circuit door opener a Arbeitsstromtüröffner be formed.

In preferred embodiments, it can be provided that the switching element arranged on the linear drive of the electric motor has a switching flank connected to a switching flank arranged on the latch

interacts. The two switching edges form a transmission that depends on the inclination angle of the switching edges in addition to the deflection of

Effective direction has a power gain.

It can further be provided that the on the linear output of the

Electric motor arranged switching member has a guide pin which cooperates with a arranged on the bolt switching cam, or that arranged on the linear drive of the electric motor switching element a

Switching cam which cooperates with a arranged on the bolt guide pin. This arrangement forms a second transmission, which makes it possible, for example, the retraction and extension of the bolt with

to perform different parameters.

The electromagnetic device for locking the bolt in the

Locking position may include a horizontal portion of the switching edge of the bolt, which for a horizontal lower portion of the

Switching edge of the switching element forms a stop when the latch is in the locking position. In a preferred embodiment, it can be provided

that the rear part device can be actuated without auxiliary power. This ensures a high degree of safety with regard to a panic function of the door opener. The rear-part device can arrange a stop arranged between a housing of the electric motor and a stop arranged on the door opener housing

Motor return spring and arranged between the latch and the door latch housing latch spring comprise. Advantageously, the

Motor return spring be made stiffer than the latch return spring and thus apply the relatively high force to release the latch of the door leaf, while the latch return spring has applied only a relatively small force to fully retract the latch after loosening in the door opener housing. The motor return spring may advantageously be designed as a helical compression spring.

The latch return spring may advantageously be designed as a leg spring.

It can be provided that the electromagnetic device comprises an electromagnet, a preferably L-shaped hinged armature and a

Locking member comprises. Preferred embodiments provide that the

Locking device of the electric motor with an electromagnet

preferably L-shaped hinged armature and a locking member comprises.

The locking member may be formed as a two-armed lever mounted on the door opener housing, wherein a first lever arm with the hinged armature cooperates and a second lever arm at its end portion a

Latch has, which arranged with a on the electric motor

Locking recess cooperates. It can be provided that the first lever arm of the locking member has a latching recess, which has a in the apex of the L-shaped

Hinged armature arranged latching curve cooperates.

It can further be provided that between the locking member and the

Door opener housing is arranged a return spring so that the locking member is pressed against the latching cam formed on the latching cam.

The return spring may be formed as a helical compression spring or as a leaf spring.

The object of the invention is further achieved by the subject matter of claim 15. It is proposed a door opener for a door with a movably mounted in or on a door frame door, comprising

a door opener housing,

one along an actuating direction between a

Locking position and a release position linearly displaceably mounted latch,

- An electrically switchable actuator with a

Self-locking electric motor with linear drive and a controllable by the electric motor actuating mechanism for actuating the bolt from the unlocked position to the locking position, - A return device for returning the bolt of the

Locking position in the unlocked position, wherein the

Actuating mechanism connects the electric motor with the bolt,

being provided

in that the actuating mechanism comprises a switching member arranged on the linear drive of the electric motor, which cooperates with the bolt such that the bolt passes from an unlocking position into the locking position when the linear drive extends out of the electric motor, and that the bolt is released from the locking position, if the linear drive in the

Electric motor retracts.

This proposed door opener thus has, like the door opener described above on the advantage that it is simple and that the three main functions "operating the" bolt "," locking the bolt "and" back parts of the bolt "are clearly separated from each other is designed as a working current door opener, so that only to operate the

Door opener electrical auxiliary power is needed.

It can be provided that the switching element arranged on the linear drive of the electric motor has a switching flank which cooperates with a switching flank arranged on the latch.

It can further be provided that the on the linear output of the

Electric motor arranged switching element has a guide pin which cooperates with a arranged on the bolt switching cam or that arranged on the linear output of the electric motor switching element a

Switching cam which cooperates with a arranged on the bolt guide pin. The electromagnetic device for locking the bolt in the

Switching edge of the switching element forms a stop when the latch is in the locking position.

It can further be provided that the electric motor is fixed in a frame of the door opener via a fastening device in its position or can be fixed. The fastening device can be, for example, a frictional fastening device, such as a clamping screw, or a positive fastening device, such as a stud, or a cohesive fastening device, such as an adhesive layer act. Further, a kit of a door opener may be provided to selectively form a quiescent current door opener or a working current door opener, comprising a door opener according to claim 15 and an electromagnetic unit constructed as a unit, wherein the combination of the door opener according to claim 15 and the electromagnetic device, a quiescent current Door opener forms and the door opener according to claim 15 without electromagnetic device forms a Arbeitsstromtüröffner.

The invention will now be explained in more detail with reference to exemplary embodiments. Show it

Fig. 1 is a schematic representation of a door with a door frame, a door leaf, two door hinges and a

Door openers according to the invention; 2 shows a first embodiment of the door opener according to the invention in a schematic sectional view in a first position.

FIG. 3 shows the door opener in FIG. 2 in a second position; FIG.

FIG. 4 shows the door opener in FIG. 2 in a third position; FIG. FIG. 5 shows the door opener in FIG. 2 in a fourth position; FIG.

FIG. 6 shows the door opener in FIG. 2 in a fifth position; FIG.

FIG. 7 shows the door opener in FIG. 2 in a sixth position; FIG.

FIG. 8 shows the door opener in FIG. 2 in a seventh position; FIG.

Fig. 9 shows a second embodiment of the invention

Door opener in a schematic sectional view;

Fig. 10 is a case of the door opener in Fig. 2 in a schematic

-Sectional view;

Fig. 1 1, the case in Fig. 10 in a perspective view.

1 schematically shows a door 1 with a door leaf 4 rotatably mounted on a door frame 2 by means of two door hinges 3. The door hinges 3 are arranged at a distance from each other along a door pivot 5. The

Door hinges 3 are provided on a vertical side of the door 1 shown on the left in FIG. The door leaf 4 is preferably a stop pivot wing.

Versions of the door as swing door, in which the door 4 as

Swing door is designed, however, are possible with appropriate design of the door hinges 3. However, it is essential in the illustrated case that the door leaf is designed as a glass wing. There is a door opener used in the door, which is designed as a so-called glass door opener. The door opener is designated in Figure 1 by the reference numeral 6. It is mounted in the area of the upper horizontal rail of the door frame. He is, as I said, designed specifically as a glass door opener. For this purpose, he has a special door opener trap, which is designed as a latch 1 1. The latch 1 1 is linearly extendable and retractable, in the illustrated mounting position of the door opener of the latch 1 1 in the vertical direction linear on and executable. The bolt is formed in the illustrated case at a free end as a U-profile, so that it engages in the extended position, when the door is in the closed position, the door leaf 4 at its upper edge.

The bolt is electrically actuated via a self-locking electric motor 12 and electrically disconnectable via an electromagnet 13. These components latch 1 1, electric motor 12 and solenoid 13 and various transmission devices that act between these components are stored in a door opener housing 14. The latch 1 1 is mounted so that it can be retracted with its free end, the locking end of the door opener housing 14 in a locking position and in the door opener housing 14 in the unlocking position in which it is out of engagement of the wing.

Figs. 2 to 8 show structure and operation of the door opener 6 in

Individual.

The door opener housing 14 is an elongated box-shaped housing in which the electric motor 12 is arranged so that its longitudinal axis with the

Longitudinal axis of the door opener housing 14 is aligned. The electric motor 12 is mounted longitudinally displaceably in the door opener housing 14, wherein it can assume a rear and a front position and can be fixed in the front position. The electric motor 12 has a linear output 121. It may be a linear motor or a gear motor, wherein the transmission converts at least one rotational movement into a linear movement. At the free end portion of the linear actuator 121, a switching member 15 is arranged, which cooperates with a switching edge 1 1 s and with a switching curve 1 1 k, which are formed on the latch 1 1. Between the housing of the electric motor 12 and a housing-fixed stop 14a, a motor return spring 16 is arranged, which in the illustrated embodiment as a

A helical compression spring is formed.

In Fig. 2, the electric motor 12 is in the rear position, wherein the linear actuator 121 is extended and the switching member 15 rests with its rear end portion on the stop 14a. The latch 1 1 is in the

Door opener housing 14 retracted and located in the

Unlocked.

The electromagnet 13 cooperates with an L-shaped hinged armature 17. The hinged armature 17 has at the one end portion on the

Door opener housing 14 supported pivot bearing 171 and cooperates with the other end portion with a coil core of the electromagnet 13, wherein between the other end portion and the coil core a

Armature return spring 18 is arranged. The armature return spring 18 assists in releasing the hinged armature 17 from the spool core when the solenoid 13 is de-energized. In the apex portion of the L-shaped hinged armature 17, a latching cam 17 r is formed, which with a latching recess 19 a of a

Locking lever 19 cooperates when the electromagnet 13 is de-energized. The locking lever 19 is supported by a door opener housing 14

Return spring 20 pressed against the hinged armature 17. In the illustrated embodiment, the return spring 20 is formed as a helical compression spring. The locking lever 19 is designed as a two-armed lever, which is rotatably mounted on a pivot bearing 19 d supported on the door opener housing 14. The hinged armature 17 facing away from the end portion of the locking lever 19 is formed as a latching lug 19r, which cooperates with a formed on the door opener housing of the electric motor 12 latching recess 12a.

Fig. 3 shows the door opener 6 in a first intermediate position in which the linear actuator 121 of the electric motor 12 is retracted, whereby the

Electric motor 12 is driven against the stop 14a and the

Motor return spring 16 is tensioned. Linear drive 121 and motor return spring 16 are not shown for clarity as hidden components in Fig. 3. The latch 1 1 is located as in Fig. 2 in the

Unlocked.

Fig. 4 shows the door opener 6 in a second intermediate position in which the electromagnet 13 is energized and the hinged armature 17 rests after rotation in the pivot bearing 171 on the spool core of the electromagnet 13. As a result of the rotation of the hinged armature 17, the latching cam 17r is disengaged from the latching recess 19a of the locking lever 19 and is located on one of

Detent recess 19a adjacent support portion of the locking lever 19 at. The locking lever 19 is in the pivot bearing 19 d to the inner wall of the

Door opener housing 14 is pivoted against the spring force of the return spring 20 and the locking lug 19r engages in the recess 12a of the electric motor 12 a. As a result, the electric motor 12 is fixed in its front position. The bolt 1 1 is as shown in Fig. 2 and 3 in the unlocked position.

Fig. 5 shows the door opener 6 with partially extended latch 1. 1 Of the

Linear output 121 of the electric motor 12 is now partially extended. Because the electric motor 12 is fixed in its relative position to the door opener housing 14, a switching edge 15s of the switching member 15 slides on the switching edge 1 1 s of the bolt 1 1 and pushes the latch 1 1 out of the door opener housing 14. The latch 1 1 is located between the unlocking and the

Lock position.

Fig. 6 shows the door opener 6 with fully extended latch 1 1, which is now in the locked position. The switching edge 1 1 s of the bolt 1 1 has a rising portion which forms a thrust gear with the switching edge 15s as described above, and a subsequent

horizontal portion which forms a stop for a horizontal lower portion of the switching edge 15s of the switching member 15. As shown in FIG. 6, characterized the latch 1 1 is fixed in the locked position.

Fig. 7 corresponds to Fig. 6 with the difference that the latch 1 1 and the switching member 15 are cut in a different sectional plane, so that now on the latch 1 1 formed switching curve 1 1 k is visible, with a on the Switching member 15 arranged guide pin 15 f cooperates. The switching curve 1 1 k has a horizontal portion at which the

Guide pin 15f is applied when the latch 1 1 is in the locked position. The horizontal section goes in the direction of the electric motor 12 in a sloping section on the foot section as a short horizontal Section follows. Fig. 9 shows the switching curve 1 1 k in an enlarged

Presentation.

Fig. 8 shows a position of the door opener 6, in which the latch 1 1 in the

Door opener housing 14 slides back, because the energization of the electromagnet 13 has just been turned off. The hinged armature 17 has dropped and returned by the armature return spring 18 in the initial position shown in Fig. 2. The armature return spring 18 is dimensioned so that the static friction between the latching cam 17r on the armature 17 and the

Support section on the locking lever 19 is overcome, so that the latching cam 17r during pivoting back of the armature 17 in the recess 19a of the locking lever 19 occurs. As a result, the locking lever 19 is pivoted by the return spring 20 so that the latching lug 19r disengages from the latching recess of the electric motor 12. The between the

Electric motor 12 and the stop 14a arranged motor return spring 16 now pushes the electric motor 12 in the rear position shown in Fig. 2, wherein the switching member 15 is moved in the direction of the stop 14a. The guide pin 15f described in Fig. 7 slides on the sloping portion of the switching cam 1 1 k, whereby the latch 1 1 is retracted into the door opener housing 14. The switching curve 1 1 k is dimensioned so that the switching member 15 with the switching cam 1 1 k is disengaged before the latch 1 1 is completely retracted in the door opener housing 14. The latch 1 1 is now exclusively by a latch return spring 1 1 r moves, which was stretched during the extension of the bolt 1 1. The latch return spring 1 1 r is shown in the

Embodiment designed as a leg spring, one leg of which is supported on a pin 1 1 z of the bolt 1 1 and the other leg of the door opener housing 14. As shown in FIG. 1 1, the locking end of the bolt 1 1 has a U-shaped receiving portion for the formed of a glass sheet door 4, wherein rollers are provided to reduce the friction in the U-legs. The spring force of the latch return spring 1 1 r alone is not sufficient to release the latch 1 1 of the door leaf 4, which is why acting on the switch 1 on the latch 1 1 engine return spring 17 in conjunction with the latch return spring 1 1 r for releasing the Riegel's required high restoring force applies. The door opener 6 is summarized by the following

Movement off:

Step 1: The electric motor 12 is momentarily energized so that the

Linear drive 121 is retracted, wherein the output 15 abuts against the stop 14a and the motor return spring 16 is tensioned. The electromagnet 13 is de-energized.

Step 2: The electric motor 12 is de-energized.

The electromagnet 13 is energized, so that the hinged armature 17 rests against the coil core of the electromagnet 13 and the armature return spring 18 is tensioned. The hinged armature 17 presses the locking lever 19 in the blocking position, in which the locking lug 19 r of the

Locking lever 19 engages in the recess 12a of the electric motor.

The electric motor 13 is fixed in its position.

Step 3: The electric motor 12 is briefly energized so that the

Linear output 121 is extended. The switching member 15 moves the

Lock 1 1 in the locked position and locks it there. The latch return spring 1 1 r is stretched.

The electromagnet 13 is energized. Step 4: The electromagnet 13 is disconnected from the circuit. Of the

Folding armature 17 is returned by the armature return spring 18 to its original position, wherein the locking lever 19 is pivoted so that the locking lug 19r of the locking lever 19 is disengaged from the latching recess 12a of the electric motor 12.

The electric motor 12 is de-energized and is characterized by the

Motor return spring 16 is brought into its rear position, wherein the switching member 15 pulls the latch 1 1 out of engagement with the door leaf 4 and the latch return spring 1 1 r brings the latch 1 1 in the unlocked position.

Step 4 illustrates that the unlocking of the door opener 6 is possible without the use of auxiliary power, so that the door opener 6 can also be used as a door opener that releases the door leaf 4 in the event of a power failure.

The door opener 6 of Figures 2 to 8 is designed as a quiescent current door opener. Fig. 9 shows a door opener 7, which is in contrast designed as a working current door opener, wherein the latch 1 1 of the door opener 7 in the position shown in Fig. 6 of the door opener 6 is.

The door opener 7 in Fig. 9 is structurally designed as the door openers described in FIGS. 2 to 8, with the difference that the self-locking

Electric motor 12 is not formed longitudinally displaceable, but is fixed in its position on the door opener housing 14 with a stud. The electric motor 12 is positioned so that it rests with its output-side end face on the stop 14a of the door opener housing 14. It is essential that the provided for determining the electric motor 12 components Electromagnet 13, hinged armature 17, armature return spring 18, locking lever 19 and return spring 20 omitted. Likewise, the motor return spring 16 is omitted.

The door opener 7 is characterized by the following sequence of movements:

Step 1: The electric motor 12 is so briefly with DC voltage

energized that the linear output 121 is extended. The

Switching member 15 moves the latch 1 1 in the locked position and locks it there in conjunction with the self-locking of the electric motor 12. The latch return spring 1 1 r is stretched.

Step 2: The electric motor 12 is opposite to DC voltage

Polarity briefly energized so that the linear actuator 121 is retracted, wherein the switching member 15 pulls the latch 1 1 out of engagement with the door leaf 4 and the latch return spring 1 1 r brings the latch 1 1 in the unlocked position.

It is also possible to modify the door opener 6 shown in FIGS. 2 to 8 for the working current operation by fixing the electric motor 12 in the position shown in FIG. 3 or FIG. 6, for example by screwing in a clamping screw, and the electromagnet 13 is not energized. In this case, only the electric control of the door opener would have to be modified additionally.

LIST OF REFERENCE NUMBERS

1 door

2 door frames

3 door hinge

4 door leaves

5 door pivot axis

6.7 door opener

11 bars

11k switching curve

11 r latch return spring

11s switching edge

11z cones

12 electric motor

12a latching recess

121 linear output

13 electromagnet

14 door opener housing

14a stop

15 switching element

15f guide pin

15s switching edge

16 motor return spring

17 hinged anchor

171 pivot bearing

17r latching curve

18 armature return spring Sperrhebela Rastausnehmungd Drehlagerr locking lug

Return spring

Claims

claims

Door opener for a door (1) with a door leaf (4) movably mounted in or on a door frame (2), comprising

a door opener housing (14),

one along an actuating direction between a

Locking position and a release position preferably linearly displaceably mounted latch (1 1),

- An electrically switchable actuator with a

self-locking electric motor (12) with linear drive (121) and an actuatable by the electric motor (12) actuating mechanism for actuating the bolt (1 1) from the unlocked position to the locking position,

- An electromagnetic device (13, 17, 19) for locking the bolt (1 1) in the locking position,

- A back part means for resetting the bolt (1 1) from the locking position to the unlocking position, wherein the Actuating mechanism connects the electric motor (12) with the bolt (11),

characterized,

in that the electric motor (12) is displaceable in its longitudinal axis from a rear position to a front position, in that the electric motor (12) can be fixed in the forward position by the electromagnetic device (13, 17, 19),

in that a motor return spring (16) is arranged between the housing of the electric motor (12) and a stop (14a) fixed to the door opener housing,

in that the actuating mechanism comprises a switching element (15) arranged on the linear drive (121) of the electric motor (12), which interacts with the bolt (11) in such a way that the bolt (11) moves from one

Release position reaches the locking position when the linear actuator (121) from the fixed in the forward position

Electric motor (12) extends;

that the switching member with the latch (11) cooperates so that the bolt (11) is released from the locking position when the electric motor (12) with extended linear output (121) comes in the rear position, and

that via the electromagnetic device (13, 17, 19) of the bolt (11) can be locked in fixing position of the electric motor (12) in the locking position and by switching the electromagnetic

Device of the latch (11) can be unlocked from the locking position.

2. Door opener according to claim 1,

characterized, that the electromagnetic device (13, 17, 19) as

removable unit and / or retrofittable

Building unit is formed. Door opener according to claim 1 or 2,

characterized,

that at the linear output (121) of the electric motor (12)

arranged switching element (15) has a switching edge (15s) which with a on the latch (11) arranged switching edge (11 s)

interacts.

Door opener according to one of claims 1 to 3,

characterized,

that at the linear output (121) of the electric motor (12)

arranged switching element (15) has a guide pin (15f) which is arranged with a on the bolt (11) switching cam (11 k)

cooperates, or that on the linear output (121) of the

Electric motor (12) arranged switching member (15) has a switching curve which cooperates with a arranged on the bolt guide pin (15f).

Door opener according to one of claims 1 to 4,

characterized,

that the electromagnetic device for locking the bolt (11) in the locking position comprises a horizontal portion of the switching edge (11 s) of the bolt (11), which for a

horizontal lower section of the switching edge (15s) of the Switching member (15) forms a stop when the latch (11) is in the locking position.

Door opener according to one of claims 1 to 5,

characterized,

that the rear part device can be actuated without auxiliary power.

Door opener according to claim 6,

characterized,

the rear part device comprises a motor return spring (16) arranged between a housing of the electric motor (12) and a stop (14a) arranged on the door opener housing (14) and a latch return spring (11 r) arranged between the latch (11) and the door opener housing (14) ,

8. Door opener according to claim 7,

characterized,

the motor return spring (16) is designed as a helical compression spring.

Door opener according to claim 7,

characterized,

that the latch return spring (11 r) is designed as a leg spring.

Door opener according to one of the preceding claims,

characterized,

in that the electromagnetic device (13, 17, 19) has a Electromagnet (13), a preferably L-shaped hinged armature (17) and a locking member (19).

Door opener according to claim 10,

characterized,

in that the locking member (19) is designed as a two-armed lever mounted on the door opener housing (14), wherein a first lever arm interacts with the hinged armature (17) and a second lever arm has at its end portion a latching lug (19r) which engages with an on

Electric motor (12) arranged latching recess (12a)

interacts.

Door opener according to claim 10 or 11,

characterized,

in that the first lever arm of the locking member (19) has a latching recess (19a) which cooperates with a latching cam (17r) arranged in the apex of the L-shaped hinged armature (17).

Door opener according to one of claims 10 to 12,

characterized,

a return spring (20) is arranged between the blocking member (19) and the door opener housing (14) such that the blocking member (19) is pressed against the latching cam (17r) formed on the hinged armature (17).

Door opener according to claim 13,

characterized, the return spring (20) is designed as a helical compression spring

a door opener housing (14),

one along an actuating direction between a

- An electrically switchable actuator with a

- A back part means for resetting the bolt (1 1) from the locking position to the unlocking position, wherein the

Actuating mechanism connects the electric motor (12) with the bolt (1 1),

characterized ,

Entriegelungsposition enters the locking position when the linear actuator (121) extends out of the electric motor (12), and

that the switching member (15) with the latch (1 1) cooperates so that the bolt (1 1) is released from the locking position when the linear drive (121) enters the electric motor (12).

16. Door opener according to claim 15,

characterized,

in that the electric motor (12) is fixed or fixable in its position in a frame of the door opener (7) via a fastening device.

17. Door opener according to one of the preceding claims

characterized,

in that the bolt (11) has a U-shaped or fork-shaped end in order to grip an edge of the door leaf in its extended position.

18. kit of a door opener to selectively form a quiescent current door opener or a working current door opener,

comprising a door opener according to claim 15 and an electromagnetic device (13, 17, 19) designed as a structural unit

wherein the combination of the door opener according to claim 15 and the electromagnetic device (13, 17, 19) forms a quiescent current door opener and

the door opener according to claim 15 without electromagnetic device

(13, 17, 19) forms a working current door opener.